noun
Japanese common toad; Japanese toad
Refers to the species Bufo japonicus, a toad native to Japan. The katakana spelling is standard in biological contexts.
ニホンヒキガエルは日本の在来種です。
The Japanese common toad is a native species of Japan.
庭でニホンヒキガエルを見つけた。
I found a Japanese toad in the garden.
Compound of 日本 (Nihon, 'Japan') + 蟇蛙 (hikigaeru, 'toad'). The kanji 蟇蛙 is rare; the word is normally written in katakana as a species name.